| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which can [vb infin] [noun pl] | 97 |
|
| 2 | which can cause [noun pl] | 11 |
|
| 3 | which can cause [noun pl] | 11 |
|
| 4 | which can [verb] problems | 6 |
|
